Early Thursday morning, a leak in the TransCanada Keystone pipeline spilled at least 5,000 barrels-or 210,000 gallons-of oil in South Dakota.
The pipeline from Hardisty, Alberta to Cushing, Oklahoma and to Wood River/Patoka, Illinois "is expected to remain shut down as we respond to this incident", the Calgary-based company said in a statement.
According to a release, a drop in pressure was detected and the estimated volume of the leak is 5,000 barrels. In April 2016, TransCanada shut down the pipeline after a local resident reported seeing oil seeping to the surface in South Dakota.More news: India to drive energy demand growth: IEA
The conduit is not the controversial and long-delayed Keystone XL Pipeline which TransCanada is still shepherding through the approval process.
Keystone carries crude from the oil sands in Canada to refineries in IL and Texas, and to a distribution center in Oklahoma.
The Keystone pipeline has leaked in South Dakota before, as recently as last spring.More news: Sessions raises prospect of special counsel on GOP concerns
While details are still emerging around this spill, we know it occurred in Marshall County on South Dakota's northern border.
What is sometimes called the Keystone 1 pipeline went into operation in 2010 and has a daily capacity of about 590,000 barrels of tar sands crude oil from western Canada. In 2010, the first year it was in use, there were 35 Keystone leaks in the USA and Canada. President Donald Trump reversed that decision swiftly after taking office, which placed the final permitting decision in the hands of Nebraska.
The Keystone Pipeline is part of a 2,687-mile system that also is to include the proposed Keystone XL pipeline, which has faced persistent opposition from environmental groups, American Indian tribes and some landowners.More news: Facing Historic Reddit Backlash, EA Cuts Cost of Star Wars Hero Unlocks
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